Here's a transcription of the song as sung by Sean Tyrell on "The Ould Plaid Shawl." Then I've followed this by the jig "Haste to the Wedding."
The tunes are not the same, although the song could perhaps be adapted to the fiddle tune without too much difficulty. I'd prefer to sing the song as Sean Tyrell sang it, and then follow it with the fiddle tune.

The abc file is below (with the words to the first verse and chorus, followed by the jig). Copy and paste this into Concertina , then click on SUBMIT and you will have the score, a midi, and a printable copy of the music in pdf format.

X:1
T:Haste To the Wedding (song)
R:jig
C:Francis Fahy
M:6/8
L:1/8
Q:3/8=110
K:A
E|EEE EA,E|FFF FEE|EEE EB,B,|B,B,B, B,2E|
w:Through high-ways and by-ways the niegh-bors are hie-ing The like of to-night they will ne'er see a-gain There's
EEE A,CE|FFF FEE|EEE EB,B,|B,A,A, A,2B|
w:mu-sic and pleas-ure and mirth be-yound meas-ure Where bright-ly the lights are a-glow in the glen O
ccc A A2|ccc A A2|ccc ccc|ddd B2B|cAA FAA|AAA FEE|EEE EB,B,|B,A,A, A,2E
w:haste to the wedd-ing, haste to the wedd-ing Haste to the wedd-ing, we must'-nt be late O hast-en, O hast-en, for all the kind fac-es There's place at the wedd-ing of Con-or and Kate
|:ECE Edc|BAB cAF|ECE AEC|B,CB, B,CD|ECE Edc|BAB cAF|E2d cec|
ABA A3:||:ece ece|fdf fdf|ece edc|BAB Bcd|e3c3|BAB cAF|E2d cec|
ABA A3:|

Cheers, S. in Seattle